Emulation 如何使用pubsub emulator http API创建订阅？

启动pubsub仿真器后，我尝试使用httpapi创建一个主题和一个订阅。创建主题成功，但我不明白为什么创建订阅失败。我是否做错了什么，或者这是工具中的错误？您可以看到以下日志：

$curl-s-X PUThttp://localhost:8085/v1/projects/myproject/topics/mytopic
{
“名称”：“projects/myproject/topics/mytopic”
}
$curl-s-X PUThttp://localhost:8085/v1/projects/myproject/subscriptions/mysub \
--数据“{”主题“：“projects/myproject/topics/mytopic”}”
找不到

在emulator端，我看到以下内容：

# create topic logs
[pubsub] Apr 29, 2020 10:37:19 AM io.gapi.emulators.grpc.GrpcServer$3 operationComplete
[pubsub] INFO: Adding handler(s) to newly registered Channel.
[pubsub] Apr 29, 2020 10:37:19 AM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
[pubsub] INFO: Detected non-HTTP/2 connection.
[pubsub] Apr 29, 2020 10:37:19 AM io.gapi.emulators.grpc.GrpcServer$3 operationComplete
[pubsub] INFO: Adding handler(s) to newly registered Channel.
[pubsub] Apr 29, 2020 10:37:19 AM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
[pubsub] INFO: Detected HTTP/2 connection.

# create subscription logs
[pubsub] Apr 29, 2020 10:37:27 AM io.gapi.emulators.grpc.GrpcServer$3 operationComplete
[pubsub] INFO: Adding handler(s) to newly registered Channel.
[pubsub] Apr 29, 2020 10:37:27 AM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
[pubsub] INFO: Detected non-HTTP/2 connection.
[pubsub] Apr 29, 2020 10:37:27 AM io.gapi.emulators.netty.NotFoundHandler handleRequest
[pubsub] INFO: Unknown request URI: /v1/projects/myproject/subscriptions/mysub

---

即使创建主题可以使用上述命令（无需内容类型），为了使用

--data'…'

选项发送数据，也需要发送内容类型标题。因此，以下命令不起作用：

$curl-s-X PUThttp://localhost:8085/v1/projects/myproject/subscriptions/mysub \
-H'内容类型：应用程序/json'\
--数据“{”主题“：“projects/myproject/topics/mytopic”}”